1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1832a02ecbdc21ad5eb523047cea5f5f490f69a55e6eb1a3cd9a10272291b6d8. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29c0798a-1372-4f28-86a4-005a68f0ddd4.json and https://artists.proofprofile.net/proofs/artist/29c0798a-1372-4f28-86a4-005a68f0ddd4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Charpentier: Les plaisirs de Versailles, H. 480 & Les arts florissants, H. 487
Charpentier: La couronne de fleurs - La descente d'Orphée aux enfers
Pergolesi: La serva padrona & Livietta e Tracollo
La serva padrona: Questa è per me disgrazia
Boston Early Music Festival Chamber Ensemble
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696d0b4669fd6eb8b7980d98f416c7ba13487d5088a09cf581b8c815b57f3bbc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB202362205.
La serva padrona: Sempre in contrasti con te si sta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93127a6492110e55b38eab96e943008ba827031c4711d0d82a02d12913f9b361. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB202362206.
La serva padrona: Stizzoso, mio stizzoso, voi fate il borioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa417eea04974812dc93fbd83ec550dbac5809b7921ffcca5423c67d0a99080a4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB202362208.
La serva padrona: Benissimo, Hai tu inteso?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc246e561c901aeca6f0757628b162e8f9b87adbddbc0035219177fea9aedccbb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB202362209.
La serva padrona: Lo conosco a quegli occhietti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918eed3c45a8e7b34d7763687ef9eaf354e584b8dd7233bed2ee70d650ba5a16. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB202362210.
La serva padrona: Or che fatto tu sei dalla mia parte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804148c7fe85b114daa1da3cafbeaf7e243fb2b140a5a321deb64462c41cc0bc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB202362212.
La serva padrona: Son imbrogliato io già
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905487da0164b57f896fddd064c2d84e6250412acb8816bb244e0c464b3bed35. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB202362215.
Sacrum Mysterium (A Celtic Christmas Vespers)
Sacrum Mysterium: Part I "A Light in the Darkness", The Road to Lisdoonvarna - Tradtional Irish Jig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb69899b7443db7f26adb57026a938850c287d28351c7fd0691ae15a2011e1a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1204412.
Sacrum Mysterium: Part I "A Light in the Darkness", Noël nouvelet - 15th-century French/Breton carol, Oxford English Text
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c92ad540cc89252c8919d909b8685ed3e9689e7ef922a2a62937b3d074cd3a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1204415.
Sacrum Mysterium: Part II "Song of Mary", O'Carolan's Cup - Manx Gaelic lullaby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f525081c1b8b6df8dc11e4557ab21d7f469a2e445fb84aeddedc4fc9e59fd7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1204426.
Sacrum Mysterium: Part II "Song of Mary", At Work on the Land / Tatter Jack Walsh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733504d7cb112c667a99bc69709361d6481fd5dfc14155f1f1975e557d16f5f7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1204428.
Sacrum Mysterium: Part II "Song of Mary", Postlude, Christmas Eve - Irish Reel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95084842b0c307ff113a0a1d23b83f21a439806897c438a1611a65a8003a6dbc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1204430.
St. John Passion, BWV 245 Pt. 2: XVII. "Ach großer König, groß zu allen Zeiten" (Chorale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724f9e1f6a8f581dc9bb94e33b72e7a8d579789f79b3a1d627fe955833ce6f38. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1706425.
St. John Passion, BWV 245 Pt. 1: IX. "Ich folge dir gleichfalls" (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14a5e7c826beba2f2b1e0883da2c6112c25398b135c46fc6c0ccf9c10c79ef1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1706417.
St. John Passion, BWV 245 Pt. 2: XXIV. "Eilt, ihr angefochtnen Seelen" (Arioso with Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1236f281b19214fa51061a8d9f28410239505216907619d7ac8265e2a4f3a52. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1706432.
St. John Passion, BWV 245 Pt. 1: XIII. "Ach, mein Sinn" (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdf07d1f3ee1b1644095bac5bf91985dc8b624df3a36fd273ae40d65bac4dbd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1706421.
St. John Passion, BWV 245 Pt. 2: XXXIV. "Mein Herz, in dem die ganze Welt" (Arioso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4559ade6bc3acb6da20e23c9bdf94e372002f9a2fb65b03a53da22d113246ac. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1706442.
St. John Passion, BWV 245 Pt. 2: XXXIX. "Ruht wohl, ihr heiligen Gebeine" (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd429a7ce29d1e2d706c95bca89ae7786fc69a28bce08876410273e1ffbd51711. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1706447.
St. John Passion, BWV 245 Pt. 2: XVI. Da fürheten sie Jesum von Kaiphas – Wäre dieser nicht ein Übeltäter – Da sprach Pilatus – Wir dürfen niemand töten – Auf daß erfüllet würde (Recitative)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2673f65e6990162708c7be5f673b3731f393022f032a13e3fc3ee4bc005eb05f. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1706424.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
St. John Passion, BWV 245 Pt. 2: XXI. Und die Kriegsknechte flochten eine Krone – Sei gegrüßet, lieber Jüdenkönig! – Und gaben ihm Backenstreiche - Kreuzige! – Pilatus sprach – Wir haben ein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afadf054954dc049b6626ca8e068f702100359e78137aef1092a576aa23bbe8. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1706429.
St. John Passion, BWV 245 Pt. 1: X. "Der selbiger Jünger war dem Hohenpriester bekannt" (Recitative)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cde22af9310c88d45562860c19beb80ae0c1682db80f087bf8c5d2a057b4e3. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1706418.
St. John Passion, BWV 245 Pt. 2: XXIX. "Und von Stund an nahm sie der Jünger zu Sich" (Recitative)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8e507fa93db16f79b60268bf7cdbd15f8c9d481feec760245e5b7e373b860f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1706437.
Lalande: Les fontaines de Versailles, S. 133 & Concert d'Esculape, S. 134
Les fontaines de Versailles, S. 133: Ouverture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49436446122ff6a81cc8c50d28e362ebcd2b7bb3bf19aa6d517aff0a0506663e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB201909701.
Les fontaines de Versailles, S. 133, Scene 3: Chaconne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b0889cb0fff2ad41e9520a704f5d46908607844a0cc439a1f6de230320c916. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB201909708.
Bach: Cantates pour Luther, BWV 76, 79 & 80
Acronym: The Battle, the Bethel, and the Ball
Durey Rediscovered: The Unpublished Song Manuscripts of Louis Durey
Forgotten Voices - A Song Cycle for Voices and Strings
Amram: Songs of the Soul / Shir L'Erev Shabbat / the Final Ingredient
Schoenfield: Merchant and the Pauper (excerpts) - Amram: The Final Ingredient (excerpts)